Onkyo... best bang for buck but get very hot.. cheaper when comparing apples to apples, but I am worried about "where did they cut their costs to do so"?
There is a good reason why the Onkyo 875 gets so hot---it actually produces a lot more watts than all the other receivers!!!
Onkyo TX-SR875
Output at clipping (1 kHz into 8/4 ohms)
1 channel driven: 201/322 watts (23/25.1 dBW)
5 channels driven (8 ohms): 141 watts (21.5 dBW)
7 channels driven (8 ohms): 128 watts (21.1 dBW)
Denon AVR-4308CI
Output at clipping (1 kHz into 8/4 ohms)
1 channel driven: 171/280 W (22.3/24.5 dBW)
5 channels driven (8 ohms): 126 W (21 dBW)
7 channels driven (8 ohms): 111 W (20.5 dBW)
Pioneer VSX-94TXH
Output at clipping (1 kHz into 8/4 ohms)
1 channel driven: 178/300 W (22.5/24.8 dBW)
5 channels driven (8 ohms): 84 W* (19.2 dBW)
7 channels driven (8 ohms): 61 W* (17.9 dBW)
Yamaha RX-V1800
Output at clipping (1 kHz into 8/4 ohms)
1 channel driven: 158/281 W (22/24.5 dBW)*
5 channels driven (8 ohms): 103 W (20.1 dBW)
7 channels driven (8 ohms): 55 W (17.4 dBW)
Sony STR-DA5200ES
Output at clipping (1 kHz into 8/4 ohms)
1 channel driven: 169/244 watts (22.3/23.9 dBW)
5 channels driven (8 ohms): 66 watts (18.2 dBW)
6 channels driven (8 ohms): 66 watts (18.2 dBW)
Sunfire Theater Grand 3
Output at clipping (1 kHz into 8/4 ohms)
1 channel driven: 252/377 watts (24.0/25.8 dBW)
5 channels driven (8 ohms): 165 watts (22.2 dBW)
6 channels driven (8 ohms): 161 watts (22.1 dBW)
Onkyo TX-NR1000
Output at clipping (1 kHz into 8/4 ohms)
1 channel driven: 211/356 watts (23.2/25.5 dBW)
2 channels driven: 190/313 watts (22.8/24.9 dBW)
7 channels driven (8 ohms): 133 watts (21.3 dBW)
Denon AVR-5805
Output at clipping (1 kHz into 8/4 ohms)
1 channel driven: 205/344 watts (23.1/25.4 dBW)
2 channels driven: 185/310 watts (22.7/24.9 dBW)
5 channels driven (8 ohms): 121 watts (20.8 dBW)
Harman Kardon AVR 7300
Output at clipping (1 kHz into 8/4 ohms)
1 channel driven: 202/343 watts (23.1/25.3 dBW)
5 channels driven (8 ohms): 145 watts (21.6 dBW)
7 channels driven (8 ohms): 139 watts (21.4 dBW)